Laser/Radiation Safety Flashcards
An electron is known as a _____ particle. Then an _____ particle may be emitted.
beta
alpha
Different units of measure are used depending on what aspect of radiation is being measured. True or false?
true
For example, the amount of radiation being given off, or emitted, by a radioactive material is measured
using the conventional units: (2)
What is the SI unit?
Curie (Ci)
becquerel (Bq) is SI unit
Radiation dose absorbed by a person units (2):
What is SI unit?
rad
gray (Gy) is SI unit
Biological risk of exposure to radiation units: (2)
What is SI unit?
rem
sievert (Sv)
What are used to detect levels of radiation? (2)
geiger - muller counter
scintillation counter
What is the radiation equation?
1 / d2
If the radioactive substance is within the body of the patient, all or part of this energy may be absorbed by the tissues. All the energy of ____ and ____ particles is absorbed by the surrounding tissues.
alpha
beta
______ rays as a proportion of the radiation escapes the body.
Gamma
Most sensitive organs/tissue to radioactive activity: (5)
gonads
bone marrow
colon
lung
stomach
Tissue sensitivity depends on tissue _____ factor.
weighting
ALARA is an acronym. Definition?
as low as reasonably achievable
X ray protection
Which provides the better and least protection?
Indicate the curves on the graph.
d-composite is least, top solid line
lead is most protective, bottom solid line
If back is facing radiation, resulting effect is _____ _____.
double exposure
Wall that protects someone from x ray protection:
composite shield
symbol for laser radiation
ionizing radiation
radiation
